Needle-guiding device for looms for weaving pile or other fabrics



u provides Patented Mar. 27, 19289.

UNITEDVV STATES; PATENT QFFICE.A

FREDERICK WILLIAM AUSTIN, 0E oLnHAM, ENGLAND.

NEEDLE-GUDING DEVCE FOR LOOMS FORV WEAIVING PILE* OR OTHER FABRICS.

i Application filed March 27, 1925, Serial No. 18,710, and in `Great Britain March` 28, 1924.

Use lniszbeen made orproposed asmeans for guiding a flexible needle, for the insertion of wett between warpthreads ina loom ot a stationary.tubular reededguide bar or slay comprising plates or ribs between which warp threads inaypass which present an 1nterrnpted tubular way with a gapz alongthe one side allowing passage. to the flexible needle and an arnrprojecting from it on one side. rllhe'. present..v invention of improi-'enients in needle Aguiding devices `for tufted pile Jabrie looinsrrelates to'` looms of the kind in which two needles are provided one above the other and. in action are pro-l jected across aiuljwithdrawn from' thewarp space togetherand lthe lower needle is proel in'ojectedfbeneath. thej warp lthreads alternately. Essentially the! invention :relates to means guidingthelower needles of looms ot. this kindfand ensuring-that .they shall enter the shuttle races or ,other places which they are required to venter when fully proa jected.r rlhe invention consists in' the pro'- vision on the lathes carrying the slays and moved to and tro for the' slays to beat-up the wett insuch looms, of guiding means se cured on `the lathes` and extending across the breadth ot the warp spacel ofthe looms and close to the slays yso, as in the movement ot the lathes to be presented iii-position to afford guidance and support rforfthe lower needles when such lower needles :are being projected across .the warp spac. These guiding means supporting and.. guiding the' lower needles ensure that these lower needlesl whetherpassing over for beneath warp threads shall be guided accurately andwith certainty into the shuttle races in which` work the shuttles cooperating with the needles or into any other spaces or parts forv entry by the needles and the use of needles ot any length requisite in a loom-of any width is made possible and; facilitated.'

In preferred.constructions this invent-ion devices allording ample support and gl'iidance to be provided for the needle and to obviate rubbing, ,rayingu or other damage ot the warp threads by thelneedle land affording greater strength in thepart or partsor guide or support.

According to this invention, in a loom having two needles one above the other projected across` and withdrawn,together from the warp space .in action,

.ed through the shed inV warp .threads and:

ot which needles the lower needle is projected through a shed;

in warp threads and beneath the ,warpl threads alternately, guiding means aresecured'upon the lathe carrying the slay to move with theV lathe and the slay and inposition to extend close to the slay across the breadth ot the vwarp space of the loom and to present lupwardly parts to be presented below the` path of the lower needle for the guidancev and support thereof when it is projectedacross the warp space so'that thel0wer .needle deflected byits weight may bear upon such guidingl means and` therebygbe guided:,accurately and with certainty'into' the shuttle race or 'other partto be entered by it or to which itis to be presented@ v `l'llliela'the and slay operated in any yusual way Yto beat up the weftare disposed and operated so that-gwhenthe needles are to'be*V projected across the warp space. the rslay, is stationary close to onevside lof thepathof the lowerneedleor may serve asa. guide for on'el side ot the lower needle. The guidingl means are thus ,presented below the pathy of the flower,A needle. Preferably the guiding ine-ans secured on the slay arelinade adjust able so ythatthey may be placedhigher or loweras may be desirable. y

.f In ythe preferred. form of thisv invention thegu'ide or each of the -two or more guides 'provided below the path of a needle Thenotehes, gaps or recesses are `ma'dewith flat sloping or other bottoms)andferrtendlvacross the bottom of thev channel Vor hollow and in both sides or one side thereof or,l only in one side or' both sides accordingV to theposition in which the warp threads are required to be when the needle passes overthem Land according tothe form of thechannelor hollow. Convenientlyone gap or notch or'recess is formed opposite to each y of the -1 spaces lbetween the dents or bars ofy the slay or alternately one notch gap or recess may be made long enough to be opposite two or more such spaces.

A guide or a pair or seriesof guides provided according to this invention is preferably formed or disposedv so that the surface or surfaces for supporting and guiding vthe needle shall rise slightly from the end below the needle as it begins to be projected to the end from which the needle passes into the shuttle race or other part to which it is to be presented when fully project-ed.

Preferably the guide or each guide in a pair or series is provided witha slot or Vslots allowing it to be adjusted into a higher or lower position as may be requisite.

In one illustrative embodiment of this in,- vention a plate for attachment to the front of the lathe or slay of a loom and with slots enabling it to be iXed in a Vhigher or lower positionis formed with a rearwardly projecting rib which is adapted vto be appliedl against the slay and isformed with a longitudinal. channel or hollow and with transverse ynotches opposite tothe spaces of the slayV arefornied as aforesaid.

` This embodiment of the invention is illustrated in Figs. 1,2, 3 and 4 of the accom`V panyi'ng drawing which show a guiding part kprovided according to this invention andV parts 'of aloom 'to vwhich 1t 1s applied sufli` ciently to make clear the construct-mmapplication and use of the guiding part.'l Fig.

i the needles land means for supporting their' lis a. front v4elevation of `part of the :guiding part provided Aaccording to this invention, part of the slay and lathe of V *a loomV for weavingpi'le Jfabricto which the guiding part is applied, parts of needles and meansk for supporting theirI ends when at rest and guiding them to the 'place of entrylbetween the `warp threads. 'F ig. 2 is a vertical sec-f tion taken on lthe plane indicated bythe line 2,*2 of Fig. 1. Fig. 3 is a plan o fa portion' of a guiding part, Fig. 4'is a front elevation on -a'smaller scale than Figs. 1,2 and 3 show-` ing in the central' part the guide' and the slay 4and lathe to which it is'applied and `atthe right hand part of the means for guiding ends vwhen at rest` and guiding them between warp threads and showing'. at the left'hand in `vert-ical section parts of thefshuttle race orf'guide in which work shuttles by which weft-threads are held in the fabric during and rafter the withdrawal of theneedles inserting them. 1

V Figs.` 5 and 6 are `vertical sections corre-4 spend-ing toFig. 2 -andshowing other forms of gui des provided according vto this'invention. Y

VThe samenumeralsof Vreference Vare employed toindicate corresponding part-s in all the ligure-s. l v

'In the drawing 7 is the lathe of a loom, 8 is the slay secured in position against the lathe 17 by means yof a cover plate 91andbolts 10 Vin a usual manner, after adjustment in vertical position by means of screws 11 engaging 'nuts 12 'mounted in recesses 13 in the lathe 7. f 14 is the upper needle and 15 the lower need-le. 116 .is the usual .guide for supporting the ends of the needles 14, 15 when retracted `from the warp threads and for guiding them between the warp threads when being projected. The guide v16 .is

shown bolted in any usual way -to the needle Y slide 161 which is secured lto the framework of .the loom also `in any usual way. 17 is the shuttle race formed inthe usual guide 18 in which are mounted the usual shuttles for .inserting -selvage threads into the loops of 'weftlthread and securing the weft threads. in the fabrics whileand Vwhen needles 14, 15"

tween fthe war-p 'threads not shown in ,this

figure but indicated in dotv and dash lines 30 in Figs'. '2, 5 and'6. In Figs. land 2 the needles. l14,15 are shown `as though prof Y jecting into a `portionof la Yshed or sheds between 'the warp threads. In Figs. 1 and 2V the lathe 7 and slay 8 are shown 'in `the po#v .si-'tion which they occupy when Vthe needlesn 14, *15ers to be projected through the shed or sheds in the warp int-he lloom and while the needles 14,15 are being so projected anduntil vthey have been again withdrawn frombetween warp threads into the position lll() in'whic'hthey are shown in Fig. 4. It will be obvious fthat in the position in which the lathe '-7 and slay 8 vareshown in Figs. 1 and each ofthe-needles 14, 155. Y

`19 .is the guilde providedaccord-ing to this invention and 'shown as formed vof a plate justed firpwards .or downwards relatively `to theV needles 714, The plate 19 is', shown as formed with 'a rearwardly projecting yrib 22 which may ibe attached to it by means of rivets 191 as show-nger if preferable therib '22l may-Albe formed integrally with the plate 19. `The plate 19 and rib '22 are formed at their upper edge with transverse notches 23 leach opposite f-to Aand Vcorresponding in width with one .of the spaces231 ofthe slay 8yso that warp 7threads in suc'h spaces 231 and below the lower needle 15 may vlie in such notches-23 'while the needle 15 is projected and ,withdrawnlover them.

The upper 'face of the ribA 422 formed of the Aprojection 24between 4the .notches l23 is 2,'-the slay f8 kactsfas a Agui-deto-one side of may formed with a hollow. of a curvature cor? responding 'to the circumference of the needle 15 and extending apart from the interruption by the notches 23 from end to end ofthe rib 22 so that opposite to each dent or tooth 26 of the slay 8 there is a guide surface on which the lower circumference of kthe lower needle l-may bear so that the needle 15 shall be supported and guided bythe'rib 22 substantially throughout the whole extent of its movement crosswise yof a warp and so be presented accurately in the shuttle race or guide 18 when Jfully projected. The upper needle 14 in being projected and withdrawn receives support and guidance in the usual way Vtrom the warp thread below it which in turn receives some support from the lower needle 15 whenl that needle 15= is projected along with the upper needle 14.:

The guide 19 is shown as graded to rise slightly as shown in Fig. 4in thedirection 'from the guide 16 to the shuttlerace or guide 18 so that while allowing free .advance of the lower needle 15 in projection it will guide the tle race or guide 18.y The guiding part 19 constructedand applied as shown in Figs. 1, 2, 3,11u is-advantageous in `affording by the notches 23 spaces 251 in which warp threads may be received and sheltered from contact with the lower needle 15. Fig. 5 illustrates a guiding part 19 .in which the transverse notches 28 extend only from the slay 8 to the central part of the longitudinal hollow 25 so that on the side 'of the hollow 25 away from the slay 8 the warp threads bear upon the side of the hol1ow'25 while the lower needle 15 passes over them.

Fig. G shows `another form of guide for the lower needle 15. The guide shown in Fig. 6 is formed of a plate27 of sheet metal which at the edge 28 to be upper in use is formed with a rearwardly anddownwardly inclined flange to form the guide 29 forthe needle 15 and is secured to the lathe 7 The upper surface 291 ofthe guide 29 formed by the rearwardly and downwardly inclined ange is disposed so close to the path of the needle 15 and so far below it vthat while there is space for warp threads when the needle 15 is projected through the shed in the warp threads the needle 15 deflected by its weight bear upon such upper surface 291 and thereby be vguided to the shuttle race 18 or other part to be entered by it or to which it is to be presented. shown in Fig. 5 and the plate 29 shown in Fig. 6 being made to extend along the slayV 8 for a suitable distance across the loom are advantageously made or disposed so that from the end presented below the needle 15 with which either of them ris used assuch needle 15 begins to be projected the surface for the guidance of the needle 15 is graded to rise slightly to the end from which theV vfor a convenient distance across thek needle 15 accurately into the shut-V HThe guiding part 19 J of the lathe 7 of a loom similarly to the plate A9 shown in Figs. 1, 2, 3 and 4. Y v

Instead of bolts 10 and slots 20` other A meansmayjbe employed for attaching and providing for the Aadjustm-ent of guiding parts of plates 19, 2 7 provided according to this invention to or upon .the slays 8 or other corresponding parts of looms.

` Instead of a single guide part oriplate be-V ing used as in the` construction illust-rated in the accompanying drawing two or more may be provided 1n a ot the warp space ofthe loom.

vided withftwoneedles one abovetheother tor projection together, guiding `means lsecured on lthe lathe to' move with such` .lathev and the slay and vextending close to the slay across the breadth of the warpspace of the loom and presenting upwardlyparts for presentation by the lathe below the path of the lower needle for the guidance' and support thereof.

2. In a loom of the kind described provided with two needles one above the. other for projection together, guiding means secured on the lathe to move withsuch lathe and the slay and extending close to the slay across kthe breadth of the warp space ofthe loom and presenting upwardly parts for presentation by the lathe below the path of the lower needle for the guidance and support thereof and by said parts presenting a grade rising from the'end at which said lower needle isto begin to pass over said parts to the end at which said lower needle is to project beyond them.

3. In a loom of the kind described provided with two needles one above lthe other,

upward and `downward adjustment ofV the parts upwardly presented. Y Y

4. In a loom .of the kind described provided with twoneedles one above the other for projection together, guiding means secured on the. lathe to move with such lathe and the slay and extending close to the slay Iacross the breadth of the warp space of the loom and presenting upwardly parts for presloom each extendingl l widthA -1 B5 l/Vha-t I dov claim as my lnvention and deonV lill) entation by the Y'la'the beloW thel path fof the lower needle for the. guidance :and support thereof and presenting gapsin the :parts np wardly `presented ,to recelve Warp threads.v

5.. ln a loom :of the kind :described iprovided with :two needles one above lthe other, for 'projection "together, guiding rneans `secured on the lathe :to move with such lathe andthe slay :and extending close ,to the slay across vthe bread-th off .the Warp space of thev Vlower needle is to project beyon'dthem.

Y 6. In a vloolnwoi'f )the hind rdescribed provided with :two needles one above Vthe other, for proje-etima together, guiding inea-ns secured on the :latheto move With-such lathe andthe slay andextending close tothe slay` across the breadth of the warp space of the leona` and presenting upwardly parts lfor presentation by the lathe below :the path :of `the lower needle for the guidance and support' thereofY and presenting gaps in the'pants -upwamdlfy presented to receive Warp threads and by said pants present-ing ,a grade rising from the endet Whiehfsaid lower .needle is to begin to `pass over said parts yto the 4end aat x-hich said lower needle s to project beyond t ieno.` y

` L7. ,In :a blooml of lthe kinddescribed -provided With tWo needles one above the other, fo1'p1ojeetion .ftog'ethen guidi-ngi means secured ont-helathe :to move with such lathe and 1t he sla-y and extending close to 'thevv slay across the breadth of the. warp space of the loom van d ,"nesentino -u awardlv x )artsfor hresl n I li entation by the lathe below the path of the lower needle 'torithe ,guidance andA support thereof and presenting means for permlttmg u-pWardand downward adjfustmenteof the parts -uapwardly rpresented and present-ing gaps in the -parts upwardly presented to 4reoenve vwarp thremls and by said parts :pre-

senting a graderising .from thele'nd lat whichr sal-d lower needle `lsyto begin to passlover .saidl parts ytofthe 5end at which said lower.

needle is Vtoproject Ybeyond them. Y p

ntestimo'ny .that I claiun thefonegoing as my invention, I have signed .my ,naine `,this seventeenth dav of' March, l925. i

,a EREDERIIGK WILLIAM AUSTIN. 

